If you’ve been enjoying Phoenix’s signature warmth, it’s time to grab a light jacket because a rare cool-down is about to hit the Valley of the Sun. Temperatures are expected to drop well below average, and on top of that, we’re looking at possible thunderstorms, gusty winds, and even a chance of hail later this week.
It may not be a full-blown winter storm, but for Phoenix—where sunshine dominates the forecast—this kind of weather shift is something worth paying attention to.
A Sudden Shift in Temperatures
For those who love the heat, you might be a little disappointed with the upcoming forecast. Starting Wednesday, March 12, we’ll see a noticeable dip in temperatures, with highs only reaching around 72°F. That’s already cooler than usual, but the real change kicks in on Thursday, March 13, when temperatures struggle to climb past 64°F.
And the nighttime temperatures? They’re going even lower. By Thursday night, Phoenix could hit a brisk 42°F. If you’ve already packed away your sweaters, you might want to pull one back out.
Thunderstorms and Strong Winds on the Horizon
As if the cooler air wasn’t enough of a surprise, rain and thunderstorms are also in the mix. On Thursday afternoon, forecasters are tracking a system that could bring scattered showers, lightning, and even small hail. Winds will also pick up, with gusts that could reach 35 mph or more.
This means:
- If you have outdoor plans for Thursday, be ready for possible rain and gusty conditions.
- Drivers should be cautious, especially in areas prone to dust storms and reduced visibility.
- Secure loose outdoor objects—trash bins, patio furniture, and decorations could easily be tossed around by the wind.
How Long Will the Cool-Down Last?
The chillier temperatures will stick around through Friday, with highs only reaching 61°F and lows dipping into the mid-40s. But don’t worry, Phoenix won’t stay cold for too long. By Saturday and Sunday, temperatures will gradually climb back into the mid-70s, with sunny skies making a return.
How to Prepare
Since Phoenix rarely experiences these cooler, stormy conditions, here’s what you can do to stay comfortable and safe:
- Layer up – Mornings and nights will be chilly, so keep a sweater or light jacket handy.
- Check the forecast before heading out – Thunderstorms can be unpredictable, and you don’t want to get caught in heavy rain.
- Secure outdoor furniture – Strong winds could send loose objects flying.
- Drive carefully in wet conditions – The roads could be slick, especially after a long dry spell.
Final Thoughts
Phoenix may be famous for its heat, but this week’s cooler temps and stormy weather are a good reminder that Mother Nature loves to keep us on our toes. Whether you love the change or can’t wait for the warmth to return, it’s always best to be prepared.
Stay safe, stay dry, and enjoy this rare taste of cool weather while it lasts!